The functionality of exporting the information held in the book objects to an excel file has been added to the library system (as a new

The functionality of exporting the information held in the book objects to an excel file has been added to the library system (as a new requirement) and how do we implement this in the code part? public void process() { int command; (); while ((command = getCommand()) != EXIT) { switch (command) { case ADD_MEMBER: addMember(); break; case ADD_BOOKS: addBooks(); break; case ISSUE_BOOKS: issueBooks(); break; // several lines of code not shown case HELP: (); break; } } } break; } } while (true); } public Book addBook(String title, String author, String id) { Book book = new Book(title, author, id); if (catalog.insertBook(book)) { return (book); } return null; } public class Catalog { private List books = new LinkedList(); // some code not shown public boolean insertBook(Book book) { return books.add(book); } } public void issueBooks() { Book result; String memberID = getToken(“Enter member id”); if (library.searchMembership(memberID) == null) { System.out.println(“No such member”); return; } do { String bookID = getToken(“Enter book id”); result = library.issueBook(memberID, bookID); if (result != null){ System.out.println(result.getTitle()+ ” ” + result.getDueDate()); } else { System.out.println(“Book could not be issued”); } if (!yesOrNo(“Issue more books?”)) { break; } } while (true); } public Book issueBook(String memberId, String bookId) { Book book =; if (book == null) { return(null); } if (book.getBorrower() != null) { return(null); } Member member =; if (member == null) { return(null); } if (!(book.issue(member) && member.issue(book))) { return null; } return(book); }

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